Home / 28,422.62-39,223.44-15,848.18

Finding the Fourth Proportional to 28,422.62, 39,223.44 and 15,848.18

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Solution

The fourth proportional to 28,422.62, 39,223.44 and 15,848.18 is: 21,870.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422.62 : 39,223.44 = 15,848.18 : x
  2. Step 2: Convert to fraction form
    28,422.62/39,223.44 = 15,848.18/x
  3. Step 3: Cross multiply
    28,422.62x = 39,223.44 × 15,848.18
  4. Step 4: Simplify right side
    28,422.62x = 621,620,137.34
  5. Step 5: Solve for x
    x = 621,620,137.34/28,422.62
  6. Step 6: Final answer
    x = 21,870.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.